Implement WebKit::WebUnitTestSupport::createLayerTreeViewForTesting()

cc/fake_web_graphics_context_3d.cc

-// Copyright 2011 The Chromium Authors. All rights reserved.
+// Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "cc/test/fake_web_graphics_context_3d.h"
+#include "cc/fake_web_graphics_context_3d.h"
 
-#include <algorithm>
-#include <string>
-
-#include "base/logging.h"
-#include "gpu/GLES2/gl2extchromium.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "third_party/khronos/GLES2/gl2ext.h"
+#include "third_party/khronos/GLES2/gl2.h"
 
 using WebKit::WGC3Dboolean;
 using WebKit::WGC3Denum;
 using WebKit::WebGLId;
 using WebKit::WebGraphicsContext3D;
 
 namespace cc {
 
-static const WebGLId kBufferId = 1;
-static const WebGLId kFramebufferId = 2;
-static const WebGLId kProgramId = 3;
-static const WebGLId kRenderbufferId = 4;
-static const WebGLId kShaderId = 5;
-
-static unsigned s_context_id = 1;
-
-const WebGLId FakeWebGraphicsContext3D::kExternalTextureId = 1337;
-
 FakeWebGraphicsContext3D::FakeWebGraphicsContext3D()
-    : context_id_(s_context_id++),
-      next_texture_id_(1),
-      have_extension_io_surface_(false),
-      have_extension_egl_image_(false),
-      times_make_current_succeeds_(-1),
-      times_bind_texture_succeeds_(-1),
-      times_end_query_succeeds_(-1),
-      context_lost_(false),
-      context_lost_callback_(NULL),
-      width_(0),
-      height_(0) {
-}
-
-FakeWebGraphicsContext3D::FakeWebGraphicsContext3D(
-    const WebGraphicsContext3D::Attributes& attributes)
-    : context_id_(s_context_id++),
-      next_texture_id_(1),
-      attributes_(attributes),
-      have_extension_io_surface_(false),
-      have_extension_egl_image_(false),
-      times_make_current_succeeds_(-1),
-      times_bind_texture_succeeds_(-1),
-      times_end_query_succeeds_(-1),
-      context_lost_(false),
-      context_lost_callback_(NULL),
-      width_(0),
-      height_(0) {
+    : WebKit::WebGraphicsContext3D() {
 }
 
 FakeWebGraphicsContext3D::~FakeWebGraphicsContext3D() {
 }
 
 bool FakeWebGraphicsContext3D::makeContextCurrent() {
-  if (times_make_current_succeeds_ >= 0) {
-    if (!times_make_current_succeeds_) {
-      loseContextCHROMIUM(GL_GUILTY_CONTEXT_RESET_ARB,
-                          GL_INNOCENT_CONTEXT_RESET_ARB);
-    }
-    --times_make_current_succeeds_;
-  }
-  return !context_lost_;
+  return true;
 }
 
 int FakeWebGraphicsContext3D::width() {
-  return width_;
+  return 1;
 }
 
 int FakeWebGraphicsContext3D::height() {
-  return height_;
+  return 1;
 }
 
 void FakeWebGraphicsContext3D::reshape(int width, int height) {
-  width_ = width;
-  height_ = height;
 }
 
 bool FakeWebGraphicsContext3D::isGLES2Compliant() {
   return false;
 }
 
 bool FakeWebGraphicsContext3D::readBackFramebuffer(
     unsigned char* pixels,
     size_t bufferSize,
     WebGLId framebuffer,
     int width,
     int height) {
   return false;
 }
 
 WebGLId FakeWebGraphicsContext3D::getPlatformTextureId() {
   return 0;
 }
 
 bool FakeWebGraphicsContext3D::isContextLost() {
-  return context_lost_;
+  return false;
 }
 
 WGC3Denum FakeWebGraphicsContext3D::getGraphicsResetStatusARB() {
-  return context_lost_ ? GL_UNKNOWN_CONTEXT_RESET_ARB : GL_NO_ERROR;
+  return GL_NO_ERROR;
 }
 
 void* FakeWebGraphicsContext3D::mapBufferSubDataCHROMIUM(
     WGC3Denum target,
     WebKit::WGC3Dintptr offset,
     WebKit::WGC3Dsizeiptr size,
     WGC3Denum access) {
   return 0;
 }
 
 void* FakeWebGraphicsContext3D::mapTexSubImage2DCHROMIUM(
     WGC3Denum target,
     WebKit::WGC3Dint level,
     WebKit::WGC3Dint xoffset,
     WebKit::WGC3Dint yoffset,
     WebKit::WGC3Dsizei width,
     WebKit::WGC3Dsizei height,
     WGC3Denum format,
     WGC3Denum type,
     WGC3Denum access) {
   return 0;
 }
 
 WebKit::WebString FakeWebGraphicsContext3D::getRequestableExtensionsCHROMIUM() {
   return WebKit::WebString();
 }
 
 WGC3Denum FakeWebGraphicsContext3D::checkFramebufferStatus(
     WGC3Denum target) {
-  if (context_lost_)
-    return GL_FRAMEBUFFER_UNDEFINED_OES;
   return GL_FRAMEBUFFER_COMPLETE;
 }
 
 bool FakeWebGraphicsContext3D::getActiveAttrib(
     WebGLId program,
     WebKit::WGC3Duint index,
     ActiveInfo&) {
   return false;
 }
 
 bool FakeWebGraphicsContext3D::getActiveUniform(
     WebGLId program,
     WebKit::WGC3Duint index,
     ActiveInfo&) {
   return false;
 }
 
 WebKit::WGC3Dint FakeWebGraphicsContext3D::getAttribLocation(
     WebGLId program,
     const WebKit::WGC3Dchar* name) {
   return 0;
 }
 
 WebGraphicsContext3D::Attributes
     FakeWebGraphicsContext3D::getContextAttributes() {
-  return attributes_;
+  return WebGraphicsContext3D::Attributes();
 }
 
 WGC3Denum FakeWebGraphicsContext3D::getError() {
   return 0;
 }
 
 void FakeWebGraphicsContext3D::getIntegerv(
     WGC3Denum pname,
     WebKit::WGC3Dint* value) {
   if (pname == GL_MAX_TEXTURE_SIZE)
@@ skipping 25 matching lines @@
     WebGLId shader) {
   return WebKit::WebString();
 }
 
 WebKit::WebString FakeWebGraphicsContext3D::getShaderSource(
     WebGLId shader) {
   return WebKit::WebString();
 }
 
 WebKit::WebString FakeWebGraphicsContext3D::getString(WGC3Denum name) {
-  std::string string;
-
-  if (name == GL_EXTENSIONS) {
-    if (have_extension_io_surface_)
-      string += "GL_CHROMIUM_iosurface GL_ARB_texture_rectangle ";
-    if (have_extension_egl_image_)
-      string += "GL_OES_EGL_image_external";
-  }
-
-  return WebKit::WebString::fromUTF8(string.c_str());
+  return WebKit::WebString();
 }
 
 WebKit::WGC3Dint FakeWebGraphicsContext3D::getUniformLocation(
     WebGLId program,
     const WebKit::WGC3Dchar* name) {
   return 0;
 }
 
 WebKit::WGC3Dsizeiptr FakeWebGraphicsContext3D::getVertexAttribOffset(
     WebKit::WGC3Duint index,
@@ skipping 30 matching lines @@
     WebGLId shader) {
   return false;
 }
 
 WGC3Dboolean FakeWebGraphicsContext3D::isTexture(
     WebGLId texture) {
   return false;
 }
 
 WebGLId FakeWebGraphicsContext3D::createBuffer() {
-  return kBufferId | context_id_ << 16;
+  return 1;
 }
 
 void FakeWebGraphicsContext3D::deleteBuffer(WebKit::WebGLId id) {
-  EXPECT_EQ(kBufferId | context_id_ << 16, id);
 }
 
 WebGLId FakeWebGraphicsContext3D::createFramebuffer() {
-  return kFramebufferId | context_id_ << 16;
+  return 1;
 }
 
 void FakeWebGraphicsContext3D::deleteFramebuffer(WebKit::WebGLId id) {
-  EXPECT_EQ(kFramebufferId | context_id_ << 16, id);
 }
 
 WebGLId FakeWebGraphicsContext3D::createProgram() {
-  return kProgramId | context_id_ << 16;
+  return 1;
 }
 
 void FakeWebGraphicsContext3D::deleteProgram(WebKit::WebGLId id) {
-  EXPECT_EQ(kProgramId | context_id_ << 16, id);
 }
 
 WebGLId FakeWebGraphicsContext3D::createRenderbuffer() {
-  return kRenderbufferId | context_id_ << 16;
+  return 1;
 }
 
 void FakeWebGraphicsContext3D::deleteRenderbuffer(WebKit::WebGLId id) {
-  EXPECT_EQ(kRenderbufferId | context_id_ << 16, id);
 }
 
 WebGLId FakeWebGraphicsContext3D::createShader(WGC3Denum) {
-  return kShaderId | context_id_ << 16;
+  return 1;
 }
 
 void FakeWebGraphicsContext3D::deleteShader(WebKit::WebGLId id) {
-  EXPECT_EQ(kShaderId | context_id_ << 16, id);
 }
 
 WebGLId FakeWebGraphicsContext3D::createTexture() {
-  WebGLId texture_id = NextTextureId();
-  DCHECK_NE(texture_id, kExternalTextureId);
-  textures_.push_back(texture_id);
-  return texture_id;
+  return 1;
 }
 
 void FakeWebGraphicsContext3D::deleteTexture(WebGLId texture_id) {
-  DCHECK(std::find(textures_.begin(), textures_.end(), texture_id) !=
-         textures_.end());
-  textures_.erase(std::find(textures_.begin(), textures_.end(), texture_id));
 }
 
 void FakeWebGraphicsContext3D::attachShader(WebGLId program, WebGLId shader) {
-  EXPECT_EQ(kProgramId | context_id_ << 16, program);
-  EXPECT_EQ(kShaderId | context_id_ << 16, shader);
 }
 
 void FakeWebGraphicsContext3D::useProgram(WebGLId program) {
-  if (!program)
-    return;
-  EXPECT_EQ(kProgramId | context_id_ << 16, program);
 }
 
 void FakeWebGraphicsContext3D::bindBuffer(WGC3Denum target, WebGLId buffer) {
-  if (!buffer)
-    return;
-  EXPECT_EQ(kBufferId | context_id_ << 16, buffer);
 }
 
 void FakeWebGraphicsContext3D::bindFramebuffer(
     WGC3Denum target, WebGLId framebuffer) {
-  if (!framebuffer)
-    return;
-  EXPECT_EQ(kFramebufferId | context_id_ << 16, framebuffer);
 }
 
 void FakeWebGraphicsContext3D::bindRenderbuffer(
       WGC3Denum target, WebGLId renderbuffer) { 
-  if (!renderbuffer)
-    return;
- EXPECT_EQ(kRenderbufferId | context_id_ << 16, renderbuffer);
 }
 
 void FakeWebGraphicsContext3D::bindTexture(
     WGC3Denum target, WebGLId texture_id) {
-  if (times_bind_texture_succeeds_ >= 0) {
-    if (!times_bind_texture_succeeds_) {
-      loseContextCHROMIUM(GL_GUILTY_CONTEXT_RESET_ARB,
-                          GL_INNOCENT_CONTEXT_RESET_ARB);
-    }
-    --times_bind_texture_succeeds_;
-  }
-
-  if (!texture_id)
-    return;
-  if (texture_id == kExternalTextureId)
-    return;
-  DCHECK(std::find(textures_.begin(), textures_.end(), texture_id) !=
-         textures_.end());
-  used_textures_.insert(texture_id);
 }
 
 WebGLId FakeWebGraphicsContext3D::createQueryEXT() {
   return 1;
 }
 
 WGC3Dboolean FakeWebGraphicsContext3D::isQueryEXT(WebGLId query) {
   return true;
 }
 
 void FakeWebGraphicsContext3D::endQueryEXT(WebKit::WGC3Denum target) {
-  if (times_end_query_succeeds_ >= 0) {
-    if (!times_end_query_succeeds_) {
-      loseContextCHROMIUM(GL_GUILTY_CONTEXT_RESET_ARB,
-                          GL_INNOCENT_CONTEXT_RESET_ARB);
-    }
-    --times_end_query_succeeds_;
-  }
 }
 
 void FakeWebGraphicsContext3D::getQueryObjectuivEXT(
     WebKit::WebGLId query,
     WebKit::WGC3Denum pname,
     WebKit::WGC3Duint* params) {
-  // If the context is lost, behave as if result is available.
-  if (pname == GL_QUERY_RESULT_AVAILABLE_EXT)
-    *params = 1;
 }
 
 void FakeWebGraphicsContext3D::setContextLostCallback(
     WebGraphicsContextLostCallback* callback) {
-  context_lost_callback_ = callback;
 }
 
 void FakeWebGraphicsContext3D::loseContextCHROMIUM(WGC3Denum current,
                                                    WGC3Denum other) {
-  if (context_lost_)
-    return;
-  context_lost_ = true;
-  if (context_lost_callback_)
-    context_lost_callback_->onContextLost();
-}
-
-WebKit::WebGLId FakeWebGraphicsContext3D::NextTextureId() {
-  WebGLId texture_id = next_texture_id_++;
-  DCHECK(texture_id < (1 << 16));
-  texture_id |= context_id_ << 16;
-  return texture_id;
 }
 
 }  // namespace cc